Home / 199,771,891.24-299,658,222.30-77,008,019.80

Finding the Fourth Proportional to 199,771,891.24, 299,658,222.30 and 77,008,019.80

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Solution

The fourth proportional to 199,771,891.24, 299,658,222.30 and 77,008,019.80 is: 115,512,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,771,891.24 : 299,658,222.30 = 77,008,019.80 : x
  2. Step 2: Convert to fraction form
    199,771,891.24/299,658,222.30 = 77,008,019.80/x
  3. Step 3: Cross multiply
    199,771,891.24x = 299,658,222.30 × 77,008,019.80
  4. Step 4: Simplify right side
    199,771,891.24x = 23,076,086,316,111,200
  5. Step 5: Solve for x
    x = 23,076,086,316,111,200/199,771,891.24
  6. Step 6: Final answer
    x = 115,512,178.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.